I have added the following sentences to the JBS issue to clarify that there will be no change for existing applications:
> The new "focusVisible" and "focusWithin" properties do not change the > semantics of the existing "focused" property. > Existing JavaFX themes will not be impacted by this change. I will also note that the motivation for this proposal was primarily to support modality-aware focus indication, which has historically been more important for desktop applications than for web applications (as evidenced by many desktop OS themes). So the cost-benefit tradeoff is probably different than for the web.
